US3372625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
External gusseting process
Assignee: Dow Chemical Co
•
Filing: 1965-05-24
•
Granted: 1968-03-12
•
Expires: 1985-05-24
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Simecek
- 👤 Ronald G Simecek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:28
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/26; B31B70/262; B31B70/266; B31B2155/00; B31B2155/003; B31B2160/00; B31B2160/10; B31B70/14; B31B70/16; B31B70/18; B31B70/36; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1054
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3023674A
Cited
US3156010A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |